[MasterYoda]

Sounds great, will test it out directly an andoid app is released :)

Be able to transfer folder and not just files between devices wireless easy without internet would be amazing.

[ekwogefee]

You can also try Feem (https://feem.io).

It transfers folders without Internet, and has an Android app like you requested.

It also supports resumable file/folder transfers, which majority of other tools mentioned in this thread don't support.

Disclaimer: I'm the creator.